Press



W. J. BRENNAN.

PRESS.

APPLICATION man MAR. 21, 1919.

Patented Sept. 19,- 1922.

2 SHEETS-SHEET I.

" VE/V 727/4 BRENNAN.

PRESS. N HL'ED MAR.2111919'.

APPLICATIO Patented Sept. 19, 1922?..-

' 2 SHEETS-SHE WWN Patented Sept. 19, 1922.

UNITED STATES;

PATENT OFFICE,

SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY,

OF NEW JERSEY.

PRESS.

' Application filed March 21, 1919. Serial No. 284,149.

T 0 all whom it may concern:

Be it known that I, WILLIAM J. BRENNAN, a citizen of the United States, residing at Swampscott. in the county of Essex and State of Massachusetts, have invented cer-' movable presser member having a presser surface area considerably less than a stock 7 Y supporting bed is movable over said bed to bring it into operative relation to a die placed upon different portions of the stock which is supported upon the bed. As these machines are commonly constructed, the movable presser member must be moved into operative position by force exerted directly by the operative, with the result that a very considerable part of the labor incidental to cutting operations is expended in overcom-- ing the inertia of the relatively heavy presser member in moving it to the desired operative position over the die and in moving it away from the'di'e after a cutting operation.

It is an object of the invention to provide improved power means for moving the presser member into and out of operative position over the cutting bed.

In one aspect the invention comprises an organization in which the power means for moving the movable presser member is operatively connected to swing the said member over the work supporting bed by flexible means arranged to rotate thesupport on which the presser member is mounted. Ina preferred form of the invention the described fiexible means comprises a cable connected to the vertically reciprocable and rotatable supporting post of the presser member, said cable having a PQF P rranged to run in opposite directions accordingly as it is desired to move the presser member to or from any selected position.

Other features and objects of the invention will be apparent from the following detailed description and will be pointed out in the claims. a

In the drawings,

Fig. 1 is a viewin side elevation of a clicking machine embodying my invention;

Fig. 2 is a view similar to Fig. 1 of the lower portion of the machine showing the power means for moving the presser mombei, and

Fig. 3 is a detail view of a portion of the mechanism for moving the presser member as seen from the rear of the machine. 7

Inthe illustrated machine, the frame 4 supports a cutting bed 6 and a co-operating presser member 8 which is mounted for swinglng movement into and out of .POSltlOnS over the cutting bed Mounted in bearings 10 in the frame is a post 12 to which the presser member 8 is fixedly secur'ed,swinging movement of the presser member being secured, through rotation of the post. EX- tending through the base of the machine is a shaft 14 which is operatively connected to the post 1.2 to cause vertical reciprocations of the same, the connecting mechanism being shown in the patent to Arthur Bates No. 921,503, granted May 11, 1909. Power is transmitted to the shaft 14: through a pulley 16 which is arranged to be clutched to the shaft by clutch mechanism, also shown in said patent, and constructed to be controlled. through a rod 18, lever 20, pivoted at 21 and having at its forward end the handle 22. The machine thus far described may be con-- trolled to effect the cutting of work placed 1 upon the cutting bed 6 by means of the handle 22. The operative seizes said handle to cause swinging movement of the presser member 8 through force exerted by the operative to place the presser member over the selected position of the die on the cutting bed. As the presser member approaches the desired position the presser member is given its pressure applying movement by depressing handle 22, which, through the connections described, throws in the clutch and thus effects a vertical reciprocation of the post 12 which carries the presser member.

A. CORPORATION As thus far described. the machine is identical with that disclosed in the said patent to Bates.

The power means for moving the presser member into and out of position over the cutting bed is shown in the illustrative mechanism to comprise a shaft 24: waich is mounted for endwise movement in bearings 26 at tached to a bracket '28 secured on the frame of the machine. Shaft 24 is driven by a gear wheel 30 splined on the middle portion of the shaft 24 and arranged constantly in mesh with a worm 32 on a stub shaft 34 mounted in a bearing on the bracket 28 and driven by a belt 36 passing around a pulley 38 fixed to the outer end of the shaft 34, the other end of the belt passing around a belt pulley 4L0 secured to or integral with the' driving pulley 16 on the main shaft of the machine. If it proves necessary or desirable a belt tightening pulley 42 may be provided mounted on an arm fixed to a hearing for the shaft 34, said pulley 442 engaging one run of the belt 36 on the outer surfae thereof, as shown in Fig. 3 of the drawings. The bearings 26 for the shaft 52 i also provide bearing surfaces for a pair of drums 416- and 47, mounted on the bearings, one adje each end of the endwise movable shaft Passing around these drums is an endless cable 48, the cable being engaged with each drum through a plurality of coils and secured to each drum by any desired means, as by a screw or clip, so that rotative movement of either drum will cause movement of the cable and of the other drum and of parts operatively connected to the cable as hereinafter described. In oriler to pass tl e cable from one drum to the other there are provided two idle pulleys 50 located below and between the drums on stub shafts 5'12 mounted in hearings on the bracket 28. After leaving the drums, the cable 4:8 carried upwardly over idle pulleys which one is shown in Fig. 1, located n bracket 56 (iXtGIlCllllg from the frame of the machine and passed several times around a drum 58 secured to or integral with the upper end of the post 12. Preferably the cable is secured to the drum as by means of a clip as in order to prevent slipping or creep-- ing of the cable on the drum. It is clear that movement of the cable 48 in one direction will cause rotative movement of the post '12 to carry the presser member over the cutting bed 6 and that movement of the cable 48 in the opposite direction will cause corresponding rot-ative movement of the post 12 to carry the presser member 8 away from operative position. Movement of the drums 4:6 to effect movement of the cable in the desired direction is obtained by the shaft 24 with the proper drum tlr-roi .z'h clutch members 60, 62., mounted one at each end of the shaft 2% in position to engage its respective drum 46 or 17. From an inspeo tion of Fig. 3, it will be seen that movement of the shaft 24 to the right in said figure will cause engagement of the clutch 60 W? the drum t6 and that movement of the shaft 24 in the opposite direction will cause engagement of the clutch 62 with its corresponding drum 47, there being a neutral pcsition of the shaft 2% in which neither clutch is engaged with its respective drum, M a is is provided for causing the endwisc shitin of the shaft 24 which comprises preferabl a circular grooved member at fixedly cured to One end of the shaft 52 and providing through the groove 66 a rotative engj a ment with a bifurcated lever member 6'53 which is fixedly carried at one end of a sh a ft 70 mountedfor rocking movement in bearings 72 on another portion 74; of the bra-ire! 28. Manually operable means is provided for rocking the shaft 70, said means being preferably in the form of a lever 76 secured to the shaft'TO at the forward end thereof and extending upwardly to provide a handle located preferably at one front corner of the cutting bed in a position readily accessible to the operator. Preferably means is also provided for holding the rockshaft 7G in a. position intermediate its extreme points of rotation thus providing also for the positioning of the shaft 2% in what may he termed the neutral position with both of the clutch members 60 and 62- disengaged from their respective drums. in the construction shown the means for thus positioning the shaft 70 comprises a member 78 attached to the plate 74 of the bracket 28 and having arms 80 which extend on either side of the shaft 70 and carry plunger-s 82 arranged to engage on opposite sides of an arm L; ad justably carried by the shaft 70. In the con struction disclosed, the arm is carried by a collar 86 secured by a set screw 88 ail-- justment for positioning the arm 84 prop erly in the assembling of the =l Preferably the plungers are received in sockets in the arms 80 and are pressed outwardly from said sockets by springs 89.

In order that the operations of the machine may be controlled most advantageously, the lever 76is so connected. with the power. means for operating the machine that after the presser member has been brought into proper relation to the bed, it may be actuated to perform a pressing operation upon a die located on the bed by further manipulation of the same lever 76. In the present embodiment of the invention the lever 76 is operatively connected to a lever 90 on the frame of the machine by means of a cable 94 which preferably passes around an idle pulley 96 as shown in Fig. 1, of the drawings. One end of the lever 90 is secured to the cable )4 and the other end is attached by a link 98 tothe rear end of the starting lever 20. Hence, movement of the lever". ;6 to the right in Fig. 1 will result in tripping the clutch on the main shaft in the same manner that depressionof the handle 22 accomplishes this result. In order that the lever 76 may have the movement just described, it is movably secured to the end'of the shaft 70 by means which, in the present construction, comprises an arm 100 secured to the end of the shaft 70 by a collar member 102 in cooperation with a set screw 104:. lower end of the arm 100 there is pivoted at 106 a link 108 which passes upwardly through a slot 110 in an extension 112 of the collar member 102. Adjustably mounted in a socket-11 i at-the upper end of the link 108 is the lever member 76. The lever 7 6 is held in its normal position of rest by a bolt116 which passes through alined openings in the link 108 and the arm 100, a spring .118 being mounted on the bolt and operative to hold the link 108 yiel'dingly against an abutment 120, the arrangement being such that the lever 76 may be moved to the right in F igs.-'

1 and 2 against action of thespring 118 to cause the tripping of the clutch on the main" shaft as described.

It will be observed that thopower mechanism just described for moving the presser member is mounted upon the bracket 28 which has members embracing; the frame of theme chine belowthe cutting bed and which is held fixedly in positio-n'on the frame by means of set screws or looking bolts 122;

Furthermore, the cables are guided on idle.

rollers or pulleys which mounted on brackets readily attachable to the machine.

, Hence the entire mechanism provided for controlling the operations of the presser member may be readily attached tomachines already built and in use. It will be observed also that the mechanism described is so located that power connections may easily be made with the main shaft on the machine;

and that the arrangement lends itself to the provision of a manuallycontrollable lever so positioned with respect to the cutting bed" by which the operative is enabled to cause the desired movements of the pressermember into and out of operative position and also the pressure applying movements thereof.

Means are preferably provided forlimiting the swinging movement of the and of the presser member carried thereby, the said means being; so constructed as to absorb the momentum ,of the heavypi'esser member and thus preventa jarring blow of the presser member againstthe upright portion of the frame 4 should the presser memher be inadvertently carried so "far to either side Of To the the cutting bed. In theillustrative construction, each pulley or drumsld'and 47 carries a stopmember 12 1- integra'l therewith or fizz:- edly attached thereto and arranged to travel 111 a path which Wlll br ng it up against a co-operating stop 126 fixed to the bracketv 28. This latter stop carries two 'plungers 128 between which is located a relatively strong spring (not shown) the arrangement words, the stops 12 1 and 126 co-operate'to stop the movement of the 'presser member so that the said member cannot come forcibly into contact with the frame 4, Since the drums turn in opposite directions, the stop 124 011 one drum will strike'the upper-plunger'128 at the same time that the stop 124;

on the other drum strikes the lower plunger? Since the cable 48 is fastened to both drums 4:6 and 4:7 and to the drum '58 an effective stop mechanism in connection with'the cable ting bed and the die in selected position on'the work," during which time the pre'sscr member 8 is conveniently located at one" side of the cutting bed 6, affording room to manipulate the die and permit the access of light to the work. When the die has been properly placed, the operative grasps the lever 76 and moves'it to cause roclring of the shaft 70 and endwise move ment of the shaft 24 to throw the proper drum into operation by which the' cable is caused to travel and thus swingthe'post and presser' member in the direction to carry .the presser membe1"" 'over the die. lVhen the presser member is nearly'ove r the die, pressure on the lever in the direction 'to cause rocking of the member 70 is relaxed. and the lever simultaneously pulled toward the operative, thus tripping the clutchon the main shaft and causing a pressure applying movement 'on the pressure'member.

pon relaxing the pressure on the leverTtS which caused "the rocking of the shaft 70, the spring-pressed plungers 82 return the rock shaft'to its intermediate position and thus effect thereturn of the endwise 'shiftable shaft 24 to itsv neutral position, dis connecting the drum from the shaft, thus terminating the' driving movement ofthe cable 48. There is no need of waiting-until the pressermember comes to rest over'the die, since the machine embodies a brake mechanism which becomes operative to stop rotative'move'ment of the post, and 'there fore the pressure Inenriber j list as the presser member is about to strike the die, said brake being fully disclosed in the patent to II, II. Eaton, granted Oct. 3, 1911, No. 1,00%,757. It is possible, therefore for the operative to control the movements of the presser member entirely through lever 76 without any direct manipulation of the presser member. Inasmuch as inertia of the relatively heavy presser member in presses of this kind has slowed up the operation of the machine and reduced the efiiciency of the operative be cause of the labor imposed in moving the presser member, it is clear that the provision of power means for effecting all necessary movements of the presser member should result in increased efiiciency both from the machine and the operative.

Having described my invention, what I claimas new and desire to secure by Let: ters Patent of the United States is:

1. In a machine of the class described, a

cutting bed, a presser member, a post carrying said presser member, and means comprising a cable operatively connected to the post for moving the presser member into selected position over the cutting bed.

2. In a machine of the class described, a cutting bed, a presser member, a post for carrying the presser member, a drum on the post, and means comprising a cable arranged to pass around said drum for rotating the post and thereby causing the presser member to move into and out o-foperative position over the cutting bed.

3. In a machine ofthe class described, a cutting bed, a presser member, a frame for rotatably supporting said presser member, power means, a readily attachable bracket for supporting said power means on said frame, and means for operatively connecting said power means with the presser member forcausing swinging movement of the presser member into and out of operative position over the cutting bed.

4. Ina machine of the class described, a cutting bed, a presser member, a post for rotatably supporting the presser member, and

ower means comprising a cable for causing rotation of the post in either direction to place the presser member in operativeposition over the cutting bed.

5. In a machine of the class described, a cutting bed, a presser. member, a post for rotatably supporting the presser member over the cutting bed, power means for causing rotation of said post, and a cable for connecting said power means with said post.

v 6. In a machine of the class described, a cutting bed, a presser member, a post for rotatably supporting the presser member, a frame in which. the post is journaled for rotation, a bracket mounted upon the lower portion of said frame and below said cutting bed, power means for causing rotation of the, post mounted upon said bracket, and

means extending upwardly at one side of the cutting bed in a position accessible to the operator for controlling said power means to effect swinging movement of the presser member at the will of the operator.

7. In a machine of the class described, a cutting bed, a presser member, a post for rotatably carrying said presser member, and power means for causing rotation of said post comprising a constantly rotating shaft, drums arranged to be driven selectively by said shaft, and a cable passing around said drums and operatively connected to said post.

8. In a machine of the class described, a cutting bed, a presser member, a post rotatably carrying said presser member, power means for causing rotation of said post comprising a cable, and means under the control of the operator for causing said cable to run in opposite directions to cause rotation of the post to swing the presser member into or out of operative position over the cutting bed.

9. In a machine of the class described, a cutting bed, a presser member, a post rotatably supporting the presser member, power means'comprising a cable for causing rotation of the post in either direction, power means for causing pressure applying movement of the presser member, and means under the control of the operator for controlling the direction of run of the cable and for causing the actuation of the presser member.

10. In a machine of the class described,

a cutting bed, a presser member, a post for rotatably supporting the presser member, and power means for causing rotation of the post comprising a constantly rotating shaft mounted for endwise movement, a cable operatively connected. to said post and arranged to be selectively connected to said shaft upon endwise movement of the latter in .the selected direction, and means for returning the said shaft to neutral position.

11. In a cutting machine, a cutting bed, a presser member, a post for rotatably supporting the presser member, power means for causing rotation of the post comprising a cable, power means for causing pressure applying movement of the presser member, a cable for causing actuation of the lastmentioned power means, and means un der the control of the operator for controlling both said cables.

12. In a machine of the class'described, a cutting bed, a presser member, a post rotatably carrying the presser member, means for causing rotation of the post, and means for limiting the rotation of the post comprising a cable operatively connected to the post.

13. In a machine of the class described,

a work supporting bed, a presser member which said cable is wound, a stop mounted movable toward and from the bed in presson the frame of the machine, and a second sure applying operations and also laterally stop mounted on the drum and so arranged over the bed into and out of selected operas to co-operate with the first mentioned 5 ative positions with respect thereto, power stop to limit the movement of the prosser 15 means for causing pressure applying opermember in one direction. ations of the presser member, power means In testimony whereof I have signed my for moving the presser member laterally name to this specification. over the bed comprising a cable connected 10 to the resser member, and a drum upon WILLIAM J. BRENNAN. 

